Printing-telegraph



(No Model.) 8 Sheets-Sheet 1.

J. H. LINVILLE.

PRINTING TELEGRAPH.

No. 368,217. Patented Aug. 16, 1887.

WITNESSES: INVENTDR.

8 Sheets Sheet 2.

(No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

INVENTEIR.

WITNEEEEEI:

ammo/s 7mm. 1%

N. PETERS. Pnmumv mr. Wuhingion, u. c.

(No Model.) 8 Sheets-Sheet '3. J. H. LINVILLE.

' PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

TENS. Photo-Lithographer, waning o.

(No Model.) s Sheets-Sheet 4. J. H. LINVILLE.

. PRINTING TELEGRAPH.

N0. 368,217. Patented Aug. 16, 1887.

WITNEEEEE." INVENTEIR.

1%MM4 W N PETERS, vhomumo n w. Wuhington. 0.0.

8 Sheets-Sheet 5.

(No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

i Ii T-.-w-: I .....W l m H M w IH LW MR INVENTUR M/M WITNEEEEE M MMv N,PETERS, Pholo-Lilho rlpfwr. Washington. D

8 Sheets-Sheet 6.

(No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

INVE NTUR. J ZM Ma a W WITNEEEEE:

N. PETERS. muwumu m mr. Washingian. n. c.

8 Sheets Sheet 7 (No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

No. 368,217. Patented Aug. 16, 1887.

2% W E T V WITNESSES.-

INVE NTUR.

N PETERS. Photo Lflhagnpher, wmm mn, D c.

8 Sheets Sheet 2s.

(No Model.)

J. H. LINVILLE.

PRINTING TELEGRAPH.

Patented Aug. 16, 1887.

' INVENTUR. fi/iK/ WITNEEEIEE: M MW.

N. PETERS. Pinon-Lithographer, waahin wn, ac

UNITED STATES PATENT OFFICE.

JACOB H. LINVILLE, OF PHILADELPHIA, PENNSYLVANIA.

PRINTING-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 368,217, dated August16, 1887.

Application filed October 4, 1886. Serial No. 215,224. (No model.)

To all whom; it may concern.-

Be it known that I, JACOB H. LINVILLE, of the city and county ofPhiladelphia, in the State of Pennsylvania, have invented certain newand useful Improvements in Printing- Telegraphs; and I do hereby declarethe following to be afull, clear, and exact description thereof,reference being had to the accom panying drawings, forming part hereof.

My invention relates, especially,to that class of printing-telegraphsoperating automatically, either as transmitters or receivers, byelectrical pulsations sent from any instrument organized as atransmitter over a conductor con nected with one or more similarinstruments organized as receivers when the type-wheel Shaft is drivenby any suitable motive power.

It relates, further, to the application of a motor to automatically winda spring which rotates the typewheel shaft; in the use of two typewheels in page printing telegraphy whereby,through suitable shiftingdevices,the impressions upon the paper from either wheel may be made inthe same continuous line; in improved apparatus for presenting the paperin page form from a continuous roll to the type-wheels, and inelectromagnetic devices and circuits to operate the type-wheels tounison the type-wheels and papercarriages and to effect impressions.

The general object of my invention is to diminish the cost, to increasethe rapidityand certainty of such apparatus, to obviate the necessityofwindingthe motive power byhand, and to provide improved meansofmaintaining synchronism between the pulsator and the type-wheels ofthe instrument employed as a transmitter and the type-wheels of theinstruments employed as receivers, whereby their synchronous movement isautomatically adj usted, when necessary, once in each revolution by anelectro-magnet responding to pulsations of twice the ordinary lengthrequired to rotate the typewheels, without retarding the regular motionof the type-wheels of the transmitter, and to effect the requisiteoperations over a main conductor by the aid of local batteries, using inall the operations currents of similar polarity.

My invention consists First, in the employment of an electrometor toautomatically wind a spring interposed between a drum carrying a toothedgear-wheel engaging with a pinion on the type-wheel shaft and a shaftpassing through the drum, around which aspring is continuouslyorinterniittently wound by means of a gear-wheel secured to said shaftthrough intermediary gearing driven by a pinion on the motor-shaft.

Second, in the peculiar construction of a table of insulated segmentsequal in number to the divisions of the type-wheels placed concentricwith the type-wheel shaft,over which segments traverses a brush securedto a metal lic hub on the type-wheel shaft and insulated therefrom. Aninsulated contactspring in electricalconnection with the main-linecircuit bears on this metallic hub. In the table of contacts, usuallytermed a sunflower, the segments are alternately connected by conductors to open and closed circuit springs operated by the stems of thekeys on thekeyboard,cxcept in one instance,whcre three consecutivecontacts are connected with closed circuitsprings of the key-board. Theanvils of the circuit-sprin gs are electrically connected with oneanother and with one electrode of the line-battery.

Third, in the use of a double-point relay with its coils in themain-line conductor, both in the transmitting and receiving instruments,the tongue of the double-point relay being connected with one electrodeof a local battery, while its front and back contacts are respectivelycon nccted by conductors to the parallel coils of the escapementelectrou'nagnets and to the other electrode of the local battery.

Fourth, in the use of neutral escapement clectro-magnets wound withparallel coils, between the poles of which eloctro-magnets polarizedarmaturcs are caused to vibrate in response to currents of similarpolarity traversing the parallel coils in reverse directions.

Fifth, in the employment of two type wheels, one engraved with theletters of the alphabet, blanks, punctuation-marks, &c., and the otherwith numerals, fractions, conventional signs, blanks, &c., both beingrigidly secured to a sleeve moving loosely on thctypewheel shaft, withmeans for shifting the type wheels vertically, and means for effectingthe printing of letters, characters, and numerals in the same continuouslines and in page form on sheets of paper or from rolls of paper.

loo

IO continuous local current, due to the prolonged contact of therelay-tongue on the front stop during the'passage'of the brush overthree successive closed circuit-contacts in the sunflower, is subdividedinto three distinct impulses-one to energize the escapementelectro-magnets and advance the type-wheels when the main line isclosed, one which passes through the other coil of the esca'pementelectro-magnets, reversing their polarity when the main line isordinarily broken, and another which again reverses the polarity of theescapement electro-magnets when the main line is normally closed,whereby a regular succession of electrical impulses in the localcircuits through the escapement electro-magnets is effected, permittinguninterrupted rotation of the type-wheels during a prolonged impulseover the main line, while at the same time the coils of the unisonelectro-magnet are included in the local circuit by the corrector duringthe time of two consecutive localcircuit pulsations through theescapement eleetro-magnets. The unison electro-magnet is preferablyadjusted so as to respond only to such prolonged pulsations.

The motor, being constantly in the closed circuits of a local battery,winds the coiled spring until arrested by a Geneva stop, or by anelectrical cut-out controlled by said Geneva stop, the coiled springconstantly tending to revolve the drum and gearing which turn thetype-wheel shaft. The revolution of this shaft is controlled by ananchor-escapement, the pawl-lever of which carries a polarized steelarmature, vibrating between unlike poles of two opposing neutralelectro-magnets wound with two parallel coils. When the circuit of themain-line battery is closed through a sunflowercontact, the armature ofthe relay is attracted, and the circuit of a local battery is closed bythe relay-tongue'through the front contact in one direction, through oneof the coils of the escapement electro-magnets, which imparts motion toa polarized armature, permitting a movement of the type-wheel shaftcorrespond ing to one division of the type-wheels, and the contact-brushis thereby moved to an opencircuit segment of the sunflower, whereuponthe main-line circuit is broken and the relaytongue falls against itsback stop, closing the local circuit in a reverse direction through thesecond coil of the escapement electro-magnets, and thereby Vreversin gtheir polarity and moving the polarized armature in a reverse direction,permitting the type-wheel shaft to revolve another step, whereby thecontactbrush'is placed on a closed-circuit segment and the previous.operation is repeated, the type-wheels continuing to rotate by theconstant force of a coiled spring or other suitable power until a key isdepressed, which causes two consecutive makes or breaks of circuit onthe sunflower, thereby interrupting the alternate succession of makesand breaks of circuit and arresting the vibrations of the relaytongue incontact with either its front or back stop. The type wheels areconsequently stopped at a character corresponding with the key connectedto that segment of the sunflower on which the brush is arrested. Whenthe key is released, the alternation of closed and open circuit contactsis restored and the type'wheel shaft continues to revolve until againarrested. The pulsations over the line operate the relays in one or morereceivers,

the line passing around the sunflower and the key-board directly fromone receiver to another in series and then to ground. The change from atransmitter to a receiver is effected by reversing an ordinary two-pointswitch. I

. The shifting of the type-wheels vertically is effected by a localbattery the circuit of which is closed by the director at certainpositions of the type-wheels through electro-magnets operating theshifting devices. Similarly, at other positions of the type-wheels, thelocal circuit is closed by the director through the impression andpaper-feeding electro-magnets. The unison electro-magnet has aprojection on its armature-lever normally in the path of a unison-armattached to the type-wheel shaft,

and which projection will arrest the typewheels in the unison positionunless withdrawn by a prolonged pulsation, occurring when the unison-armarrives in contact therewith. This pulsation can pass through the coilsof the unison electro-magnet only when a prolonged linecurrent energizesthe relay electro-magnet and when the Corrector and type-wheels of thereceiver are within one step of the unison position; hence if thetypewheels of a receiver are not moving synchronously with thetype-wheels of a transmitter they will be arrested on arriving at theunison position until a prolonged pulsation occurs in the main line atand just preceding the unison position of the transmitter,simultaneously releasing the unison-arms of both instruments by apulsation in the local circuit through the coils of the unisonelectro-rnagnet of twice the duration of the normal pulsations whichenergize the escapement electro-magnets without checking the motion ofthe typewheels, as is the case where the unison and escapementelectro-magnets both respond to the same prolonged impulses in the sameline.

The paper is preferably fed from a continuous roll and spaced betweenthe lines of printing thereon by the actionlof an electro-magnetoperating devices different from those shown in my previous LettersPatent, and the papercarriages are brought into unison by continuing thepulsations until they are all arrested at the end of their forwardmovement, when all the carriages are simultaneously released by magneticdevices, which not only release the pawl and dog of the spacingrack, butalso release a counter-pawl engaging in a counterrack introduced topromptly check the movement of the paper-carriage when advanced suddenlyto space rapidly between letters.

An improved signaling device to indicate to the transmitting-operatorwhen the paperearriage of the receiver has completed its recoil movementoperates as follows: The mainline circuit is looped throughspring-contacts normally closed at the transmitters and recei vers, andthe key that is employed to close the main-line circuit and arrest thetype-wheels at a blank space in position for the directors to close thelocal circuit through the electromagnets which operate to release thepapercarriages short-circuits this loop at the transmitter. Thepaper-carriage of the receiver when recoiling separates these contacts,thereby momentarily interrupting the main-1i ne cireuit, and therelay-tongue consequently strikes its back stop, changing the localcircuit through the cscapement electromagncts, and the type-whcels ofboth instruments consequently make one revolution, being again arrestedwhen the brush reaches the segment of the sunflower connected with thedepressed key. This abnornal movementof the type wheel will, withcertainty, indicate the recoil of the paper-carriage of the receiver,and the operator will thus be enabled to correct any irregularity in themovement of the respective paper-carriages before printing a succeedingline.

My invention also comprises numerous de tails of mechanism hereinafterfully explained.

In the accompanyingdrawings, illustrating my invention, Figure l is aplan view of the key-board and paper-carriage and a plan of the interiorof the apparatus below a horizontal plane cutting the instrument abovethe scape-wheel and the cscapement electro-magnets. Fig. 2 isalongitudinal section through the body of the key-board and instrumentand a side elevation of the bracket and im pression eiectro-magnet andmechanical devices. Fig. 3 is a transverse section of the apparatustaken in rear of the type-wheel shai't. Fig. 4 is a horizontal sectionthrough the base of the instrument and through the bracket supportingthe impression devices, and showing also a detail of the winding-drumand Genevastop cut-out. Fig. 5 is a rear elevation of the instrument.Fig. 6 is a top view oi'the box ofthe instrument and of thepaper-carriage and impression devices. Fig. 7 is a detail of therespective disks and circuitsprings composing the director. Fig. 7 is avertical longitudinal section of the director. Fig. '8 is a detail ofthe respective disks and circuit-springs composing the eorrector. Fig. 9is a diagram indicating the direction of the current in an ordinaryeleetro-magnet,with two cores united by apole-pieee. Fig. 10 is adiagram of the core and coil of an electro-magnet as ordinarily wound,showing the polarity when the positive current circulates in thedirection indicated. Fig. 11 is a diagram of two electromagnets withopposing poles, the coils of which are all Wound similarly to thewinding illustrated in Fig. 10, but with two parallel coils. The coilsshow the direction of the currents of similar polarity, and theresulting reverse polarity of the opposite poles is indicated. Fig. 12is a diagrammatic view of the complete circuits of the line and localbatteries through the circuit -eontrolling devices and electromagnets ofan instrument organized as a transmitter, and Fig. 13 is a diagrammaticview of the complete circuits of theline and local batteries through thecircuit-controlling devices and electro-magnets of an instrumentorgauized as a receiver.

Referring to the drawings, 0 represents a suitable case inelosingportions of the instrument. A key-board, O rests on and is detachablefrom the case 0. The bed-plate O is secured to the case by lugs O, andon this bed-plate is constructed the removable upper case, consisting ofthe corner-pieces 0, posts 0 0", front plate, 0", top plate, 0 andbeveled glass side plates, 0. By removing the long screws 0 thecorner-pieces 0', may be taken out, and the glass sides may then beremoved, affording access to the interior of the apparatus withoutremoving the top plate, 0'.

On the base 0 is secured the plate 0, of insulating material, to whichare secured the insulating-strips o", and to which the circuit springs 0and 0", the anvil-bars o, and the stops 0" are fastened. The anvil-bars0 are insulated from the keyboard Through the removable key-board O andthe guides 0" pass the stems '0 of the open-circuit keys 0 and theclosed-circuit keys 0. The stems of these keys are provided with helicalsprings 0 and with terminals 0,ot' insulating material, in contact withthe circuit-springs o and 0'", and also with stop-pins 0, to limit theirupward movement.

The anvil-bars 0 limit the down ward movement of the circuit-springs 0",and the stops 0 determine the movement of the circuitsprings 0". Thekeys 0 and o are engraved with letters of the alphabet, characters,numerals, fractions. punctuatiou-marks, (be.

The key 0 marked Up, is used to arrest the type-wheels at apredetermined point, in order to actuate the several devices to raisethem. To lower the type-wheels, the key 0, marked Down, is employed. Thekey 0 is depressed when spacing between words or advancing thepaper-carriage, the key 0 to feed the paper between lines, and the key 0is depressed when it is desired to release the paper-carriage at anypoint in its excursion. The plate U is sustained by posts a, securedwithin the bcd-plate O, and forms the support for the type-wheel shaft Band the shaft 0. The flanged ring a is supported by the plate M, whichsupports the sunflower S.

The sunflower S consists of thirty-two metallic segments, as shown inFigs. 12 and 13, equally spaced around and concentric with thetype-wheel shaft B. These segments are insulated from each other andfrom the bed-plate 0 The segments marked s are connected by theconductors 7 to the circuit-springs 0 and the segments s by theconductor 6 to the circuit-springs 0". Three successive contacts, 8 ofthe sunflower S are connected with closed circuit-springs 0 while allthe remaining segments are alternately connected to circuitsprings 0 and0". The metallic hub s is sccured to and insulated from the type-wheelshaft It, and carries an arm, 3, to which is adjusted the brush 8hearing on and arranged to traverse the segments 5 and s when thetype-wheel shaft revolves. The contact-spring s insulated at s from theinstrument, bears on the metallic hub s and is in connection with theconductor 8 of the line-circuit. During the revolution of the type-wheelshaft and brush alternate makes and breaks of circuit of uniformduration will occur in the mainline circuit until the brush passes threesuccessive closed contacts, which will then produce a prolonged impulsein the line-circuit without checking the regular progressive movement ofthe type-wheel shaft effected through the intervention of the corrector,as hereinafter more particularly described.

Rotary motion of the type-wheel shaft R is effected by the spur-wheelv,secured to the drum V, engaging in the pinion-wheel e" on the shaftIt, the drum V being constantly revolved by a coiled spring, 12 securedto the interior of the drum and to the shaft o". This shaft '0" isconstantly turned by a suitable motor, 0, through the intervention ofmiterwheels 1;" and o and a pinion, o", engaging in the spur-wheel 21,secured to the shaft 11", thus continuously winding the coiled spring ountil arrested by a Geneva-stop pinion on the shaft o looking in itsgear-wheel e on the spur-wheel'v, or, preferably, until the motorcircuitis temporarily interrupted at a predetermined point in the revolution ofthe Geneva stop. The cam '0 on the gear-wheel?) passes under theinsulated pin 22", sliding in the metal wheelo' insulated from the shaft12, and by raising the pin c, which impinges against the circuit-spring'0, lifts this spring clear of the metal Wheel '0 thereby interruptingthe motor-circuit, which-is again closed when the drum V and spur-wheelo are advanced by the force of the coiled spring, and by whicharrangement a uniform tension of the coiled spring 0 is maintained. Themotor-circuit may be shunted in any well-known manner through aresistance equivalent to the combined resistance of the motor-armatureand field-magnets. When the motor-eircuitistemporarily interrupted, theshaft o is prevented from recoiling by a click, a, engaging in theratchet e on the shaft '0.

The step-by-step motion of the type-wheel shaft is controlled by apolarized armature, p, carrying pallets p and p, engaging in thescape-wheel p on the type-wheel shaft R. This armature is caused tovibrate by alternate reversals of the polarity in the adjacent poles ofthe double-coil neutralescapement electro-magnets I. 1?, P and 1?", dueto the change of direction of the currents of similarpolarity'traversing these coils. Alternate makes and breaks of themain-line circuit through the brush 8 respectively magnetize anddemagnetize the relay D, causing its tongue d to vibrate between itsfront stop, d, and back stop, (i alternately closing the circuit fromone pole of the local battery B through the corrector L and theelectro-magnets 1, P, I, and P causing corresponding vibrations of thepolarized armature p, and consequently a step-by-step movement of thescape-wheel p, type-wheel shaft R, and brush 8 as will be hereinaftermore fully explained. Consequently when the switch \V is turned to thepoint 20, Fig. 12, and the point w, Fig. 13, and the circuit of themain-line battery B is thereby closed through the key-board andsunflower and the relay of the transmitter, and throughthe'relay toground at the re ceiver, the relays of the transmitter and receiverwillvbe simultaneously energized, and the type-whcels of bothinstruments will continue to revolve synchronously until the alternatesuccession of closed and open circuit contacts is interrupted, bydepressing a key, 0 or 0, which causes the brush 8 to contact with twoconsecutive closed or open, circuit segments in the sunflower, arrestingthe vibrations of the relay-tongues d,and stopping the vibration of thepolarized arniatures p and pallets p and p", and stopping thescapewheels 12 and type-wheels R and It at a character corresponding tothe key depressed on both transmitters and receivers. \Vhen the key isreleased, the alternate succession of impulses in the main line isthereby restored, and the shaft It continues to revolve until againarrested by depressing a key or by breaking the line-circuit at theswitch W, as hereinafter more particularly described.

The director M (shown in detail in Fig. 7 and in the dissected views inFig. 7) is secured to the shaft R by means of hubs m and m, set-screws mand m", the pins on and m, combining the insulating -collars m and mwith the hubs, and the insulating-sleeves m and m The metallic sleeves mand m are prolonged until they reach the separatingdisks of insulatingmaterial m' and m IZC The

' m The spring m bears on the sleeve m,

and springs on, on, and m bear, respectively, on the metallic disks m mand m". Similarly, the spring m bears on the sleeve m", and the springsm, m, and m bear, respectively, on the metallic disks m m", and 112. Ihave shown a corrector with thirty-two divisions, corresponding with thenumber of divisions on the sunflower and the number of characters on thetype-wheels. These numbers must correspond in all cases; but a greateror less number in each would operate equally as well. There are thirteenexterior metallic contacts, m, on the disk on? and fourteen contacts,an, on the disk m at regular intervals on the periphery, except whereone regular contact is omitted, as at m, m, m, and m. The contactcorresponding to the division m is on disk on at m, and the contactcorresponding to m is on disk at at m. The contact corresponding to thedivision m on disk m is at m on the disk m, and the contactcorresponding to the division at on the disk at is on the disk m at m'.The contacts m on the disk m alternate with the contacts m on disk m andit follows that if the director M is stopped at any one of itsthirty-two subdivisions electrical contact will be made through theparticular spring resting on the contact corresponding with thatsubdivision, and the metal sleeve m or m and the spring m or m. and allother peripheral contactsprings will rest on insulated spaces separatingthe metallic disks.

The peripheral contact-springs m and m are in the local circuit ofbattery 13" through the coils of the electromagnets F, employed formoving the paper carriage to space between letters, and through thecoils of the electro-magnet G, for making impressions. The spring at isin circuit with the coils of electro-magnet H for lifting thetype-wheels, and the springm in the circuitof the electro-magnet H forlowering the type wheels. The spring at is in the circuit of theelectro-magnet I for feeding the paper to space between lines, and thespring at is in the circuit of the electro-magnet J to release the dog fand the pawl f and counter-pawl f" from the spacing-rack f 5 andcounter-rack f of the papercarriage at any point in its excursion. Theperipheral contacts are shorter than the intervening insulations, sothat the momentary closing of the local circuits during the rapidrevolntion of the director is not of sufficient duration to energize theelectro inagnets in circuit, so as to overcome their retractingsprings;but when the shaft R and the director M are arrested by the depressionof any key the corresponding peripheral contact of the director restsunder its respective circuit-spring, and a prolonged impulse results,strongly energizing the particular electro-magnet through the coils ofwhich the circuit is thus directed.

The construction of the corrector L, which is secured to but insulatedfrom the shaft R, is

similar to one division of the director M, as

illustrated in Fig. 7. The metal disks Z Z, and Z are in electricalcontact with the insulated metallic sleeve Z, and are separated byinsulatingdisks.

The spring Z in the circuit of the local battery B, through conductor11, tongue (Z, and the front stop, d", of the relay 1), rests on themetal sleeve Z, and the spring Z" is in the circuit by the conductor 18with a coil of the escapcment electro -magnets I, P, P and l? and withthe spring Z through the metallic disk Z except at one divisionthereof,- where theinsulated space Z breaks this electrical. connection,and at the same time the circuit through the front stop, (Z, is divertedby the contact Z" on the disk Z through the spring Z" and the conductor22 into the other coil of the escapement electro-magnets. At thisparticular subdivision of the corrector L, and for one subdivisionprevious thereto, the contact Z on the disk Z falls under the spring Z,and the circuit through the front stop, ZZ, is closed in a parallelcircuit through the springs Z and Z" and one coil of the escapementelectromagnets and the unison magnet Q during the time that thesubdivision of L is passing under the springs Z", Z, and Z, and inparallel circuit through the springs Z and Z and the other coil of theescapement electro-magnets,and also through the unison electro-magnetsQ, while the succeeding subdivision of the corrector L is passing underthe circuit springs, thus alternating the two impulses of the localbattery B through the escapement electro-magnet, and causing an impulseof twice the duration of one of the former impulses to energize theunison electro-magnet once in each revolution of the shaft R. Theprolonged closing of the tongue (Z against its front stop, d, occurswhen the brush .9 passes three successively-closed circuit-segments onthe sunflower S, and this occurs only once in each revolution of theshaft R. The unison electromagnet Q attracts its armature q and therebymoves the stop (1 out of contact with the unison-arm q, secured to theshaft R,when ener gized by prolonged impulses. Since the prolongedimpulse cannot occur unless at the time when the brush .9" is passingover the three consecutively-closed circuit-contacts in the sunflower S,the electro-magnet Q in the transmitters and receivers can release therespective unison-arms only at the unison position; and if theunisolrarm q of a receiver arrives at the unison position in advance ofthe unison-arm q" of a transmitter it will be arrested until theunison-arm q of the transmitter arrives at the unison position, whenboth unison-arms will be simultaneously released and the type-wheels ofthe respective instruments will start together in unison. Thealternation of impulses of the local battery B, by means of theinsulation Z, contact Z, and springs Z" and Z, effects a continuousrotation of the type-wheel shaft R, while the relaytongue (Z is inprolonged contact with its front stop, tZ-a resultimpracticable when theuni- IIO son electro-magnet is in the same line and responds to the sameimpulses as the escapement electro-magnet.

The apparatus for shifting the double typewheels R and B and forregulating the impressions will now be described.

The type-wheels R and R are rigidly secured to a sleeve, r, movingfreely on the typewheel shaft R. The sleeve r terminates at its lowerend in a grooved collar, 'r. A red, r", slides freely in the top plate,O and the bracket 0, and the arm r is secured to the rod 1" and projectsat right angles therefrom, terminating in a fork with pins 'r, catchingin the grooved collar r. A lever, h, is secured to the shaft h,supported in bearings h", and the lever h is pivoted at 'r to the rod1", and a shorter lever, 7L, secured to this shaft 71)", projectshorizontally therefrom, and at its extremity is linked a vertical bar,h, pivoted at its lower end by the eyebolt 71?, Fig. 12, to thearmature-lever h of the electro-magnets H and H. \Vhen theelectro-magnet His energized, its armature h is attracted, therebyraising the levers h and h", and consequently the rod r, arm r, sleeve'r, and the typewheels It and R to the position as shown in Fig. 2.Conversely, when the electro-magnet H is energized and the armature h isthereby attracted, the type-wheels It and It are lowered, so that theupper type-wheel, R, is in the same horizontal plane previously occupiedby the type-wheel R, directly opposite the center of theimpression-hammer 9, so that both type-wheels will render theirimpressions in the same line.

The ink-roller r is long enough to supply ink to both type-wheels, andrevolves freely on a pin, 1, on the arm 1". The arm 1' is looselypivoted on the rod 1* and supported on a collar, T9, secured to said rod1-. pressure of the ink-roller 0* against the typewheels R and It iseffected by the spring 1- while the projecting end 1 of the arm 9impinges against an adjusting-screw, 0*", when the ink-roller 1' passesover the blank spaces on the type-wheels. By this arrangement of theapparatus, as described, the ink-roller r "is simultaneously given thesame vertical movement as the type -wheels R and R. I employ fourprinting-springs, two of which, r and r, are secured in the sleeve r" onthe stud r, and adjustable by the nut r secured to the stud r, and theother two printingsprings, r and T are secured in the sleeve 9, andadjustable by means of the nut 1" on the stud r.

The printing-springs are shown in position in Fig. 3, with thetype-wheels raised so as to take the impressions from the lowertype-wheel, B In this position the printing springs r and r are oppositethe space between the type-wheels. When the type-wheel It is in positionfor printing, the springs r and r are above this type-wheel and thesprings r and r are opposite thespace between the typewheels. Theprinting-springs operate to pre- Constant vent imprcssions being takenfrom the typewheel that is not in the same horizontal plane with theprinting-hammer g. The impression eleetro-magnet G is suspended from acurved bracket, .9 secured to the bracket 0. Its right-angulararmature-lever g is pivoted at and is extended vertically, so as toimpinge against the stem 9 of the printing-hammer g", and horizontallyto carry the armature g. It is adjusted by a helical spring, and a stem,with a milled head, 9. The stem of the printing hammer passes freelythrough a sleeve, 9", the bore of which is enlarged to receive a coiledspring, 9 operating to give backward motion to the stem 9. When eithertype wheel R or R is arrested, with a character opposite theprintinghammer g, and the electro magnet G is energized, as hereinafterdescribed, it will attract its armature g, and the lever g, striking thestem y, will force the printing -hammer against the interposed sheet ofpaper T causing an impression thereon of the character presented. 1

The paper-carriage for supporting the roll of paper T and presenting itin a flat sheet, T in the rear of the type-wheels, consists,

mainly, of a curved plate, T to which are fastened the side bars, T andT, by means of the flanges T and T The paper T is guided upward on thiscurved plate T between the plate T and the guide-bars T and T. A red, Tstays the upper extremities of the bars T and T and supports the fiatsheet of paper T The paper is delivered from the roller T*, held inbrackets on the side bars, T and T, and is fed upward to space betweenlines by the feed-rollers I and I, revolved by the angular shaft 1. Therollers I and 1 are secured near the ends of and revolve with the shaft1, suprollers and the feed-rollers I and I.

The angular shaft 1, included between the feed-rollers I and I isrevolved by a loose- IIO flanged pinion, 2' sliding freely on the shaftI, and the spur-wheel i, which engagesin the pinion t, is fastened onone extremity of the shaft which is held in suitable bearings secured tothe back plate, 0". On the other extremity of the shaft 13" is secured aratchetwheel, 5", into which engages the hook-pawl i,pivoted in theextremity of the right-angular lever '5 which is rotated on a trunnion,i. A spring, i", attached to the lever itkeeps the hook-pawl i incontact with the ratchet-wheel 6 When the type-wheels are stopped at ablank space corresponding to the key 0 on the key-board O, theelectro-magnet I is there upon energized through the local circuitshereinafter described, attracting its armature z, and thereby causingthe hook-pawl t" to revolve the ratchet-wheel the space of one tooth,and consequently effecting a movement of the feed-rollers I and I",through the inter vention of the spur-wheel i and flanged pinion z' Therelative proportions of the lever t ratchet-wheel spur-wheel i flangedpinion i, and feed-rollers I and I are such that the paper is, by oneimpulse through the coils of the cleetro-magnet I, fed upward the spacebetween two lines at any point in the excursion of the paper-carriage.The paper-carriage moves laterally on wheels 15* and t", ruuning betweenthe traekst and t, secured to the back plate, 0, and on wheels t and t,running on the lower track, i". To advance the papercarriage,a rack, fand a eonnter-raekj are employed, both attached to the bars T and T ofthe carriage.

The pawl f, pivoted at the extremity of the armaturelever f of theelectro-magnet F, engages in the rack f and the counter-pawl f", pivotedon a fixed centcr,f, and coupled to the stud-screwf" by the link f,engages in the counter-rack f when the armature-lcver f is retracted byits helical spring f Vhen the electromagnet F is energized, attractingits armature f, the counter-pawl f 9 is thrown away from thecounter-rackfl At each throw of the rackf by the pawl f the counter-pawlf suddenly arrests the rack f at the precise point required to spacebetween two letters, while the dog f, catching in a tooth of the rack fprevents a retrograde movement thereof. The electro-magnet F isenergized, as will hereinafter be more fully explained, when thetype-wheel is arrested at any character or at a spacing-blank. Theelectro-magnet J is employed when energized to attract the armature j onthe short lever j, secured to the shaft j, as shown in Figs. 1, 3, and4. The long lever j is secured to the shaftj at a higher plane and justbelow the plane of the pawl f dog f and counter-pawlf. A bar, j, passingunder these pawls and dog, has a pin, j, passing up behind the dog f, apin, j, behind the pawl f and a pin, j, behind the counter-pawl f, andthe bar j is pivoted to the extremity of the lever j. \Vhen the key 0 isdepressed and the eleetro-magnet J is energized, as hereinafter morefully described, and attracts its armature j" on the leverj, the shai'tjis slightly revolved, imparting angular motion to the long leverj andthereby causinglongitudinal movement of the ba1'j ,wl1ich, by means ofthe pinsj, j, and j, releases the pawl f and the dog f from the rack fand the counter-pawl f from the counter-rack f thus permittingretrograde movement of the paper carriage, which is solicited by theweight t, hung to the cord 19", passing over the pulley and attached tothe arm t, sesecured to the paper-carriage. Thekeyo can be operated atany position of the paper-carriage to release the carriage at anypointin its forward movement. I

The bent arm t is attached to the base 0, and through the extremity ofthis arm passes the adjusting-screw I), limiting the movement of thespring if, secured to the arm 15. The

buffer i secured to the side bar, T, impinges against the spring t,which strikes the set screw it, the resilience of the spring 1. thusneutralizing the shock, and the set-screw t limiting the retrogrademovement of thepapercarriage.

To indicate by signal to the operator at a transmitter when thepaper-carriage of a re ceiver has completed its retrograde movement, thefollowing devices are employed: The bent lever 15, Fig. 5, is pivoted atin the bracket t, rising from the arm 1. A contact, t, is insulated fromthe arm I by theinsulation f, and a contact, t, is insulated from thebent lever t by the insulation '6". The conductor 2 of the main line isattached to the contact t, and the conductor 3 of the main line isattached to the contact i In Figs. 12 and 13 are shown the releasing-keyo in connection with the main-line circuit. In a cut-out circuit, 49 and50, are placed the contact-springs 0 and 0", with the contacts separatedand the springs insulated from each other by a block 01' insulatingmaterial, 0'. From the stem 0 of the key 0 extends an arm, 0, whichimpinges on the insulation 0 on the spring o when the key 0 is depressedto release the paper-carriages. Since the key-board of the instrumentused as a receiver is cut out of the line-circuit when the switch 7 ison the point 10, Fig. 13, and the key-board of the transmitter is in theen'- cuit of the main line when the switch \Vis on the point 10, Fig.12, thedepression of thekey 0 at the transmitter will shortcircuit theportion of the line-conductors S and 2 between key 0 and the contacts 13and t, rendering the device for breaking the line-circuit at thecontacts 25" and If inoperative at the transmit ter. The pawl t",hanging from the arm t secured to the side bar, T, and pivoted looselyat t and stopped by the pin 25, trips the bent lever 15", separating thecontacts Wand if, when the paper-carriage recoils, thus breaking themain-line circuit in the conductors 2 and 3 at the receiver, as shown inFig. 13. Thekey 0" is an open-circuit key, and the relays D in the mainline are energi'zed,while thekey 0" is de pressed,closing the main lineduring the retrograde movement of the paper-carriage ol a transmitterand a receiver coupled in circuit, as shown in Figs. 12 and 13. Themomentary interruption ot'this circuit by the separation of the contactst and t when the pawl t strikes the arm i allows the relay-tongues d toclose the contacts d against the back stops, (1", diverting the localcircuit through the other coil of the escapcment electro-magncts 1, 1, Pand P, which permits the rotation of the type-wheels preeisel y the sameas if the key 0 had not been depressed. The type-wheels will again,however, be arrested when the brush e arrives at the segment of thesunflower S,connected with the key 0. If this key has not in themeantime been released, and this revolution abnormally produced, willevidently indicate that the papercarriage of the receiver has rccoiled,thus enabling an operator to maintain synchronous movement of thepaper-car riages of both the transmitter and receiver.

The paper-carriages of a number of receivers may be brought into unisonwith that of the transmitter by stopping the type-wheels at the blankfor spacing between words. At each period when a blank space is made thepaper-carriages will move forward a step until their forward movement isarrested. If such movement of thetype-whcels be continued,any carriagethat may have beenretarded may be brought to the end of its forwardexcursion, when, by depressing the releasing-key 0 all thepaper-carriages may be simultaneously released. The hanging pawl t"rides freely over the bent lever when the papercarriage is advanced.

In Fig. 10 is indicated the core of an electromagnet wound overhand,withthe heel end at the left and a positive current circulating in thedirection indicated by the arrow therein will produce a south pole, S",at the armature end. If two similarly-wound cores are con-' nectcd,as isusual,and as is shown in Fig. 9, a positive current will circulatearound these cores in the direction indicated by the arrows, producing asouth pole, S", at the heel end of the left-hand core and a north poleat the heel end of the right-hand core, and when united by a yoke in theusual manner the combined magnet will have reverse polarity at thearmature end of the cores.

In Fig. 11 are shown two U electro-magnet with confronting poles, thecores of which magnets are wound with two separate coils so connected toone another and to the respective conductors that a positive currentwill circulate around the respective cores in the direction indicated bythe lines x as".

Thehelical line 00 indicates the direction the positive current willcirculate around the cores to produce the confronting poles S" and N,and the line 00 indicates the direction the positive current willcirculate around the cores to produce in the confronting poles thepolarity indicated by S and N,indicating,respectively, south and northpolarity; The double coils of the eleetro-magnets P, P, P, and 1 areconnected in circuit, so that the currents circulate as indicated by theline .00 x in Fig. 11.

The operation of the electro-magnets and mechanical devices and thecourse of the electrical circuits in a transmitter and a receiver whenthe switch WV is turned to the point 10, as in Fig. 12, and the switchWV is turned to w, as in Fig. 13, will now be described. Since thetransmitters and receivers are similar in every respect, and can beoperated interchangeably by reversing the position of the switches W,similar letters'and figures have accordingly been employed to designatesimilar devices and circuits in Figs. 12 and 13.

In Fig. 13 the conductor 8 is broken at w, the switchVV cutting out ofcircuit the contactsprings 0 and 0 and segments of the sunflower S,while in Fig. 12 the conductor 3 is broken at w, and the segments of thesunflower S and the contact-springs o and 0 are in circuit. Therelay-magnets D in both instruments respond simultaneously to allimpulses in the main line, and all other magnets in both instrumentsrespond similarly to simultaneous impulses of the local batteries whentheir circuits are closed through the relay tongues and by either thedirector or corrector.

It will of course be understood that the magnetic devices and circuitsin both instruments will operate simultaneously, and hence thedescription of their operation hereinafter given refers to both thetransmitting and receiving instruments. H

The type-wheel shafts It and the brushes 8 revolve to the left, asindicated by the arrows. Starting with the brush 3 of the transmitter,Fig. 12, arrested on a closed-circuit contactthat is, the first segmentmarked 8" in its path and direction of rotation-and assuming that theclosedcircuit spring 0 has been depressed by its key 0 interrupting theline-circuit at the anvil-bar 0, the mainline circuit may be followedfrom earth at A, Fig. 12, by the conductor I to the negative electrodeof the battery B, from the positive electrode by the conductor 2 to thecontact t, thence by the contact and the conductors 3 and 4 to theanvilbar 0, and by the conductor 5 to the anvil-bar 0. The main-linecircuit is broken at the anvil-bars 0 and at the suntlowensegments s,connected to the springs 0, until a key, 0, is depressed to cause aspring, 0", to make a contact with the anvil-bar 0 and the brush 8 isover a corresponding segment, 8 The circuit is normally closed at thecontact-springs 0 through any segment a over which the brush 8 passes;but it has been assumed that the key 0 has been depressed and the brush5 is over the first segment marked 8, connected to spring 0", andconsequently the main-line circuit is interrupted at both ends of theconductor 7, attached to the springs 0 and the segment 3 The circuitcontinues from the contact-spring 0 by the conductor 7, segment 8 brush8, arm 8 hub 3, spring 8', and the conductorS to the point 10, and byswitch W and conductor 9 to the coil of the relay D, through the sameand conductor 10 to the coil of relay D inFig. 13, and by the conductor9, switch W, point w, and conductor 3 to the contacts t and t, thence bythe conductor 2 to earth at A. The circuit being interrupted at theanvil-bar 0, the tongues of the relays D are against their back stops,(Z and the circuits of the local batteries B are completed from thepositive electrodes of the batteries B through the con ductors 11,relay-tongues (I, back stops, d, and conductors 12 to one of thecoils ofthe electromagnets P conductors 19, coils of electromagnets 1?,connections 13, coils of electro' magnets P, connections 36, coils ofelectromagnets P, and by the conductors 14 and 16 to the negativeelectrodes of the batteries B. The local circuits being thus closed, theelectro-magnets in circuit are energized by the positive current in oneof the two parallel coils attracting the polarized armatures p to thepoles of, say, P and P, the pawls p engaging in a tooth of thescape-wheels p and arrest ing the type-wheel shafts R and the correctorsL one step back of the position shown in Figs. 12 and 13. The springs Ztherefore rest on the metallic portion of the disks Z. If the key 0 bereleased, the main-line circuit 10 just described will be closed by thespring 0 impinging on the anvil-bar 0, the relays D will be energized,attracting their armatures (Z, and the local circuits will be closedfrom the positive electrodes of the batteries B, in a manner as alreadydescribed, through the relay-tongucs (Z, thence through the front stops,(Z, conductors 17, springs Z, sleeves Z, disks Z", springs Z, (stillresting 011 the metallic disks Z1) conductors 18, the other parallelcoils of electro-magnets P, connections 35, parallel coils of theelectro-magnets P connections 20, parallel coils of P, connections 51,parallel coils P, and by the conductors 21, 15, and 16 to the negativepoles of the batteries B. The electro-magnets P, P, P, and P, incircuit, being energized by a positive current through the secondparallel coils now in circuit, (the first coil being in the circuitsinterrupted at the back stops, Z the confronting poles are there byreversed and the polarized armatures p are attracted to the poles of theelectro-magnets P and P, releasing the pallets p and causing the palletsp to engage in the next adjacent teeth of the scape-wheelsp, thuspermitting the type-wheel shafts It to advance one thirty second of arevolution by the action of the coiled springs c. The brush 8 of thetransmitter will now rest on the second segment 8, still in connection,by the conductor 7, in a closed circuit of the main line, as previouslydescribed, and the relay-tongucs (Z still remain in contact with theirfront stops, (Z; but the local circuits of the batteries 13 are nowreversed by the correetors L, the circuit being from the front stops,(If, through the conductors 17, springs Z", sleeves Z, contacts Z of thedisks Z, (springs Z" and conductors 18 being cut out of circuit by theinsulating-spaces Z,) springs Z,and conductors 22 to a junction with theconductors 12, the circuit of which is now interrupted at the backstops, (Z thence, by a portion of the conductors 12, to the electromagnets P thence through the coils of the electro-magnets P, P, and P,and connections 19, 13, and 36, and by the conductors 1 1 and 16 to thebatteries .3. The polarized armatures p are again attracted to the polesof the electro-magnets P and P, and the type-wheel shafts It moveanother thirty-second of a revolution, throwing the brush 8 on the thirdseg ment marked 8 which being in a closed circuit, the relay-tongues (Zstill remain against the front stops, (Z; but, the correetors L havingmoved one division, the last-described local circuit is closed throughthe front stops, cZ,conductors 17, springs Z, sleeves Z, metallic disksZ springs Z, and conductors 18, &c., as previously described, and thepolarized armatures are again attracted to the poles of electro-magnetsP and P, releasing the pawls p and the type-wheel shafts R, and thebrush 8 of the transmitter advances another step, as before mentioned,which throws the brush 5 on an open-circuit segment, 8, of the sunflowerS; and since all remaining segments are alternately open and closedcircuit contacts, the typewhecl shafts It, solicited by the springs 22,will continue to revolve step by step as the scape-wheels p are releasedby the vibra tion of the polarized armatures p until arrested by theconnection of two consecutive open or closed circuit segments of thesunflower S, produced by the depression of a key, 0 or 0.

In the first two positions of the correetors L, hereinbefore described,while the brush .9 was on two consecutive segments 8 s and the currentwas prolonged through the front stops,

(Z, of the relays D, the branch circuits of the batteries B werecompleted from the sleeves Z, through the contacts Z on the disks Z,springs Z, conductors 143, the coils of electro-magnetsv Q, andconductors 2 1, 15, and 16 to the negative electrodes of the batteries3, and the electro magnets Q were energized by a pulsation in durationequal to two pulsations through the electro magnets P, P, P, and P,attracting their armatures q and withdrawing their arms q" clear of theunison-arms without checking the type-wheels. Since such prolongedpulsations in the circuit of the electro-magnet (g in a receiver canoccur only when the brush 8" is passing the first two segments a in atransmitter, it is evident that if the typewheels It and ll) of theinstruments are not in unison the unison-arm of the receiver will bearrested at the unison position until the brush 8 of the transmitterpasses over the second segment 8 when an impulse of double the durationwill simultaneously release the unisonarms of both the transmitter andreceiver, and the type-wheels It and Pt of both instruments will againrevolve in unison.

Continuous rotation of the type-wheels It and R is maintained during thecontinuation of the impulses over the main line, as already described,by the force of the springs e, which are wound by the electromotors O.The 1110- tors O are in the circuits of the batteries B in bothtransmitter and receivers, or they may be, if so desired, in thecircuits of independent batteries. The circuits originating at thepositive electrodes of the batteries B are by conductors 25 to one ofthe field-magnet coils, thence to the opposite field magnet coils,thence by the conductors 26 to the brushes a through the coils of thearmatures c to the brushes 0, thence by the conductors 27 to the springsc, Fig. 4, through the springs o and the insulated metallic disks if",springs '0', and by the conductors 52 and 16 to the negative electrodesof the batteries 3. When the springs o are wound up to a certaintension, the inclined surface of the cams e lift the pins o made ofinsulating material, raising the springs e out of contact with themetallic disks 12 and the circuit just described being therebytemporarily interrupted, the motors O are stopped, or otherwise they maybe arrested by the Geneva-stop pinions a locking in the stop-wheels cThe line-circuits of the batteries Band also the local circuits of thebatteries B, which op erate the motors G and the escapement and unisonelectro-magnets P, P, 1?, P and Q, act in the manner already describedto control the type-wheels R and R. In the operations of printing, ofmoving the type-wheels, and of feeding and releasing the paper-carriages the circuits from the auxiliary batteries B may be employed. Thecircuits through the dotted conductors 46, 47, 48, and 32 are in thiscase to be considered as disconnected or inopera tive. When anycharacter-key o is depressed,

. asegment, 8, following a closed-circuit segment 8', will be placed ina closed circuit through the conductor 6, and when the brush 8 is incontact with this segment the tongues of the relays D will be heldagainst their front stops, the consecutive order of makes and breaksover the line having been interrupted by closing the circuit at theanvil-bar 0 and the spring 0 by the open-circuit key 0. The type-wheelsR and R will therefore be arrested with a character corresponding withthe character on the particular key 0 which has been depressed andfacing the paper T directly opposite the printinghammers 9". When anycharacter on the type-wheels, or the blank space thereon for spacingbetween words, is presented to the printinghammers, the directors M arein such relative angular position that the circuits from the batteries Bwhich are permanently in closed circuits from the positive electrodesthrough the conductors 28 and 45 to the springs on sleeves m, Figs. 12,13, 7, and 7, and conductors 28 and 33 to the springs m" and the sleevesm will be completed from the sleeves m and at, through the springs m orsprings 112*, according as the printing-contacts m on the disks m or theprinting-contacts m on the disks m are under these springs in both thetransmitter and receivers.

In Fig. 7 contact m falls under a springmt, and the circuit continuesfrom the sleeves m, disks m, contacts m, springs m, conductors 29, coilsof the eleetro-magnets F, conductors 30, coils of the electro-magnets Gin both instruments, and to the negative electrodes of the batteries I?by the conductors 31 32, and the electro magnets F consequently attracttheir armatures f, causing the pawlsf to engage in the next adjacenttooth, respectively, of the racks f while the counter-pawls are, by theaction of the links f ,thrown out of contact with the counter-racks f lof both transmitter and receiver. The electro-magnets G, beingenergized, attract their armatures g, and the extremities of theirlevers g consequently strike the stems g, forcing the printing-hammers9" against the paper T and effecting thereon simultaneous impressions ofthe character presented. When the open-circuit key 0 is released, thecircuit through the segment and brush is interrupted at an anvil-bar, 0and spring 0, and the relay-tongues d fall against their back stops,d",permitting motion of the scape-wheels p, and the directors Mconsequently interrupt at the contacts on the circuits just describedthrough the electro-magnets F and G. The .armatures g are thereforewithdrawn by their retractingsprings' g, and the printing-hammers g arewithdrawn by the helical springs 9 encircling the stems g. Thearmaturesf are withdrawn by the retracting-springs f attached to thelevers f, which, by their pawls fflengaging in the racks f move thepaper-carriages to space simultaneously between two letters, while thecounter-pawls f", engaging in-the counterracks f limit the movement ofthe paper-earriages. The type-wheels R and R continue to revolve,and,the contacts m and on being short, the momentary closing of thecircuits through the electro-magnets F and G is not of suffieientduration to energize these electromagnets so as to attract theirarmatures. If a key, 0, is depressed, a segment, .9 connected to anopen-circuit spring, 0", will be succeeded by a segment, s, the circuitto which, through the conductor 7, will be interrupted at the anvil-bareand spring 0", and, the relay-tongues d remaining against their backstops, (1 the brush 8 will be arrested over the segment s inconnection,by a conductor, 7, with the particular key 0 depressed. Therelay tongues being thus arrested on their back stops, (P, a characteron the type-wheels corresponding with the key 0 depressed will bepresented to the printing-hammers g", as hereinbefore described; but thelocal circuits of the batteries 13 will now pass from the directors M,by the sleeves m, contacts m on the disks m springs m, and conductors 34,to the electro-magnets F, and by the conductors 30 to theelectro-magnets G, thence, as previously described, to the nega tiveelectrodes of the batteries B, while the springs m will rest oninsulating-spaces m on the disks m thus interrupting the circuitsthrough the springs m and the conductors 29. Another impression willconsequently be made, and upon releasing the key 0 the circuit of themain line will be closed through the spring 0" and anvil-bar 0 and thetypewheels will again be rotated, as hereinbefore mentioned.

To elevate the type-wheels, as shown in the position indicated in Fig.2, the key 0 ,which is an open-circuit key, is depressed, closing thecircuit at the anvil-bar 0 by the springs 0. The type-wheels arearrested with the blank spaces on both the type-wheels R and It oppositethe paper T and thelocal circuits of the batteries 13 are closed by thedirectors the coils of the electromagnets II, thence by the conductors38 and 32 to the negative electrodes of the batteries BZwhile all thesprings m, m, in, in, and in bear on insulating ma terial on theperipheries of their respective disks. The electromagnets II will alonebe energized, attracting their armatures if, and elevating verticallythe bars h, which rock the shafts h by means of the levers h elevatingthe extremities of the levers h", which control the movements of therods 1, carrying the forked arms 1", provided with pins 1, which engagein the grooves o" of the sleeves a, carrying the type-wheels It and RThe inkrollers r are carried on the arms a, supported by the collars 0-"on the rods 0", and consequently the ink-rollers 1' move in a verticaldirection with the type-wheels. Upon releasing the key 0 the type-wheelsIt revolve in position to give impressions, and the springs r 1' and rprevent impressions being made by the type-wheels It. To lower thetype-wheels,so that impressions may be taken from R, the key 0 which isa closed-circuit key, is pressed, breaking the circuit at the anvil-bar0 and spring 0" of a closed-circuit key. The type-wheels are arrestedwith another blank space corresponding to the key 0 facing the paper Tand the circuits of the local batteries B are completed through the'directors M by the contacts m through the springs in, conductors 39,coils of the electromagnets H, and conductors 40 and 32 to the negativeelectrodes of the batteries I3 energizing the el'ectro-magnets H, andthereby attracting their armatures h, which draw down the bars Jr andlower the type-wheels and inkrollers, so that the type-wheels R will bein the same horizontal planes as the printinghammers g". Releasing thekey 0 causes the typewheels to continue to revolve until stopped by thedepression of another key.

To space between lines at any point in the excursion of thepaper-carriage, the key 0" is pressed, whereupon the typewheels arearrested with a corresponding space presented to the paper T, and thelocal circuits of the batteries B are closed through the directors M,contacts m on the disks m, springs m, conductors 41., coils of theelectro-magncts I, and conductors 42 and 32 to the negative electrodesof the batteries I3 in the transmitters and receivers, therebyenergizing the electromagnets 1, which attract their armatures t,revolving the bent levers on their trunnions t, and causing thehook-pawls i to revolve the ratchetwheels one notch.

The ratchet-wheels are secured to the shafts i, which carry spunwheels1' engaging in flanged pinions 2", moving loosely in a 1011- gitudinaldirection on the angular shafts I, which carry on their extremitiesshort feedrollers 1 and I, pressing against the under side of the paperwhile the rollers I and I bear on the paper over the rollers I and I andare drawn downward by the springs t", and therefore it follows that therotation of the ratchctwheels the space of one notch in each will, byproper proportion of the gearwheels and feed-rollers, cause the paper tobe fed upward the desired space between two lines. Vhen the key 0 isreleased, the circuits through the electro-magnets I are interrupted bythe movement of the directors M,and the retracting-springs i withdrawthe armatures i, throwing forward the bent levers t and causing thehook-pawls 2'', held in contact with the ratchet-wheels by their springsi", to engage in another tooth in each of the ratchet-wheels.

To release the pawls f and dogs f from the racksf and the counter-pawlsf" from the racks f, the key 0 must be depressed. Corresponding withthis key there is a blank on' the type-wheels It and IV, and when theyare arrested with the blank opposite the printing hammers g" thecircuits of the local batteries B are closed by the directors M, throughthe contacts in on the disks in, springs m, conductors 43, the coils ofthe eleetro-magnets J, and conductors 44 and 32 to the negativeelectrodes of the batteries B The eleetro-mag nets .I are therebyenergized, attracting their armaturcsj attached to the lever j, drawingforward the bars j, and causing the pins j", j, and j to release thepawlsf and dogsf from the racks f and the countcr-pawlsf from thecounter-racks f of the respective carriages. The paper carriagesthereupon are free to move backward, solicited by the cords t and weight'6. YVhen the hanging pawls If" strike the bent levers t, the main-linecircuit is interrupted between the contacts t and I of a receiver, andthe type-wheels of the respective instruments make one revolution, ashereinbelore described, thereby signaling the completion of theretrograde movement of the respcctive paper-carriages.

In the local circuits of the batteries 13" the conductors 46, 47, and 48were excluded. the conductors 28, 33, and 45 from the nega tiveelectrodes of the batteries IV, Figs. 12 and 13, to the springs m and m"be omitted, and the conductors 46 from the positive electrodes of thebatteries 13 be connected through the conductors 16 to the negativeelectrodes of the batteries 13, the batteries 13 and 13 will becombined, and if the positive electrodes of the batteries B be connectedto the springs m by the conductors 47, and the springs in" by theconductors 4-7 and 48, the respective circuits of the electro-magnets F,G, H, H, I, and J will be closed whenever closed by the directors M inparallel circuits with the circuits of the elcctro-magnets P, I, P and Iand pan allel with the circuits through the electromagnets Q whenevertheir circuits are closed by the cor-rectors L.

I do not limit myself to any specific disposition of the local batteriesand circuits, since it will be obvious to those skilled in electricalscience that separate or combined batteries may be employed with thedirector M and correetor L to prod uee the desired result; nor

ICC

do I limit myself to the use of three successive closed-circuit segmentsin a sunflower, the other segments of which are alternately connected inopen and closed circuits of the main line, as these are unnecessary, andall the seg ments may be alternately connected in open and closedcircuits except when employed in connection with the unisonelectro-magnet Q, responding to prolonged impulses.

I contemplate using printing and ratchet electro-magnets responding toprolonged pulsations in the same circuit with the escapementelectro-magnets without the intervention of a circuit-director.

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

1. The combination of a line battery and circuit, a sunflower havingsegmental contacts alternately in open and closed circuits withcontact-springs, a type-wheel shaft and motive power for rotating thesame, a brush secured to and insulated from said type-wheel shaft andtraversing said segmental contacts, a re- V lay electro-magnet in saidcircuit and its armature-lever provided with double contactpoints, frontand back stops on which said contact-points impinge,parallel-coil-neutralescapement electro-magnets and a polarized armaturecontrolled thereby, a local-battery circuit closed by said relayalternately through the parallel coils of said electro-magnets inreverse direction from the same electrode of said battery, saidpolarized armature carrying pallets, and a scape-wheel on saidtype-wheel shaft controlled thereby, substantially as and for thepurposes set forth.

2. The combination of a line battery and circuit, a sunflower withcontacts alternately in open and closed circuits of said line,atypewheel shaft, an electromotor for winding a coiled spring forrotating said shaft, a brush secured to and insulated from saidtype-wheel shaft, a double-point relay with its coils in said circuit,double neutralescapement electromagnets wound with parallel coils and apolarized armature controlled thereby, and a local battery circuitalternately closed by said relay through parallel coils of saidescapement electro magnets in reverse direction from the same electrodeof said local battery, said polarized armature carrying palletscontrolling a scapewheel secured to said type-wheel shaft, substantiallyas and for the purposes set forth.

3. The combination of a mainline battery and circuit-keys with open andclosed contactsprings in the circuit of said battery, a sunflower withcontacts electrically connected alternately in open and closed circuitswith said contact-springs, a brush for traversing said contacts, atype-wheel shaft and motive power for actuating said shaft, adouble-point relay in said main-line circuit, a local-battery circultand neutral-escapement electro-magnets wound with parallel coilsincluded therein, a polarized armature controlled thereby, saiddouble-point relay closing the circuit through the same electrode of thelocal battery alternately in reverse direction through the parallelcoils of said escapement electro magnets, the polarized armaturecarrying pallets, a scape-wheel on said type-wheel shaft controlled bysaidpolarized armature, and printing and ratchet electro-magnets withtheir armatures, levers, and retracting-springs, said electro-magnetsenergized, respectively, by the circuit of said local battery,substantially as and for the purposes set forth.

4. The combination, substantially as hereinbefore set forth, of amain-line battery and circuit, keys with open and closed contactspringsin the circuit of said battery, a sunflower with segmental contactselectrically connected alternately in open and closed circuits with saidcontactsprings, a brush traversing said contacts, a type-wheel shaft andmotive power for actuating said shaft, two type-wheels secured to asleeve on said shaft, a double-point relay in said circuit, alocalbattery circuit, neutral-escapement electro magnet-s includedtherein, a polarized armatnre controlled thereby, a circuit-director onsaid type-wheel shaft, springs bearing on the hubs and the diskscarrying insulations and contacts for closing the circuit of saidbattery, two independent electro-magnets in separate circuits connectedwith two of the disks of said director, and their hinged armatures,lever, shaft, and lever-arms for raising and lowering said type-wheels.

5. The combination of a main-line batterycircuit, keys with open andclosed contactsprings in the circuit of said battery, a sunflower withcontacts electrically connected alternately in open and closed circuitswith said contact-springs, a type-wheel shaft and motive power anddevices for rotating the same, two type-wheels secu red to a loosesleeve thereon, a double-point relay in said circuit, a local-batterycircuit, neutral-escapement electro-magnents therein, a polarizedarmature controlled thereby, a circuit-director secured to saidtype-wheel shaft, springs bearing on the hubs and respective disks ofsaid director, carrying insulations and contacts for closing thecircuits of said battery, two independent electro magnets in separatecircuits with said director, said electro-magnets, with their hingedlever, armature, shaft, and lever-arms,

operating to shift said type-wheels, and ratchet and printingelectro-magnets with their armatures, levers, and retracting-springs,said elec tro-magnets energized by impulses in the circuit of said localbattery, substantially as and for the purposes set forth.

6. The combination, substantially as hereinbefore set forth,ofaline-battery circuit, keys with open and closed contact-springs inthccircuit of said battery, a sunflower with con tacts electricallyconnected alternately in open and closed circuits with saidcontactsprings, a type-wheel shaft and motive power for retating thesame, a doublepoint relay in said circuit, a local-battery circuit,neutral-escape- IIS'

